Hall Effect Sensor interfacing with Arduino

[sayers]

The circuit diagram on the web page needs to be corrected. The 10K resistor on the circuit board is acting as a pull-up resistor from signal to +5V while the circuit diagram shows the 10K as bridging +5V to Gnd. It appears that the hall sensor pins 1, 2 and 3 on the circuit board are +5V, Gnd and Signal, respectively. The diagram pins are +5V, Signal and Gnd, respectively.

[brunsniggel]

I guess this is just for educational purposes, but as you can achieve the exact same effect without the arduino i suspect that this may be confusing to some people